CVE-2022-20937

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in a feature that monitors RADIUS requests on Cisco Identity Services Engine (ISE) Software could allow an unauthenticated, remote attacker to negatively affect the performance of an affected device.
This vulnerability is due to insufficient management of system resources. An attacker could exploit this vulnerability by taking actions that cause Cisco ISE Software to receive specific RADIUS traffic. A successful and sustained exploit of this vulnerability could allow the attacker to cause reduced performance of the affected device, resulting in significant delays to RADIUS authentications.
There are workarounds that address this vulnerability.

Una vulnerabilidad en una función que monitoriza las solicitudes RADIUS en el software Cisco Identity Services Engine (ISE) podría permitir que un atacante remoto no autenticado afecte negativamente el rendimiento de un dispositivo afectado. Esta vulnerabilidad se debe a una gestión insuficiente de los recursos del sistema. Un atacante podría aprovechar esta vulnerabilidad tomando acciones que hagan que el software Cisco ISE reciba tráfico RADIUS específico. Una explotación exitosa y sostenida de esta vulnerabilidad podría permitir que el atacante reduzca el rendimiento del dispositivo afectado, lo que provocaría retrasos significativos en las autenticaciones RADIUS. Existen soluciones que abordan esta vulnerabilidad.

*Credits: N/A

CVSS Scores

NISTv3.1 5.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-02 CVE Reserved
2022-11-03 CVE Published
2024-05-26 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-410: Insufficient Resource Pool

CAPEC

References (1)

URL	Tag	Source
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sec-atk-dos-zw5RCUYp

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				< 2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version " < 2.7.0"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch1		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch2		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch3		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch4		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch5		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch6		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.7.0 Search vendor "Cisco" for product "Identity Services Engine" and version "2.7.0"		patch7		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.0.0 Search vendor "Cisco" for product "Identity Services Engine" and version "3.0.0"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.0.0 Search vendor "Cisco" for product "Identity Services Engine" and version "3.0.0"		patch1		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.0.0 Search vendor "Cisco" for product "Identity Services Engine" and version "3.0.0"		patch2		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.0.0 Search vendor "Cisco" for product "Identity Services Engine" and version "3.0.0"		patch3		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.0.0 Search vendor "Cisco" for product "Identity Services Engine" and version "3.0.0"		patch4		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.0.0 Search vendor "Cisco" for product "Identity Services Engine" and version "3.0.0"		patch5		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1"		patch1		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1"		patch3		Affected